I was coming up to my twelfth birthday, in grade 6 (form 2 at the boy's school I was attending in Westmount, Quebec). Apart from WFF 'N Proof, I didn't have much exposure to computers I could use. My Dad took my downtown to his office sometimes, where he'd do something incomprehensible with the IBM 370 mainframe that he was working on at the time. He'd leave me to entertain myself on the Keypunch machines.